The mixture of gases that surrounds the Earth and is necessary for breathing.

A particular kind of atmosphere or mood.

माहौल

English Usage: There was an air of mystery in the old house.

Hindi Usage: पुराने घर में रहस्य का माहौल था।

A guard or watchman.

Someone who watches over or monitors a specific area.

पर्यवेक्षक

English Usage: The sentry monitored the area for any unusual activity.

Hindi Usage: पर्यवेक्षक ने किसी भी असामान्य गतिविधि के लिए क्षेत्र की निगरानी की।